NBU 水水更健康 （一）

在这里放一些初学时在宁波大学OJ写的题，因为太水了所以放到一起，当然对于零基础的人还是有难度的，大神内心默默鄙视就好

单组A+B

#include<stdio.h>int main(){    int a,b,c;    printf("please input two numbers:\n",a,b);    scanf("%d%d",&a,&b);    c=a+b;    printf("sum is:%d",c);    return 0;}

不确定组数A+B

#include<stdio.h>int main(){    int a,b;    scanf("%d%d",&a,&b);    while(a!=0||b!=0)    {        printf("%d\n",a+b);        scanf("%d%d",&a,&b);    }    return 0;}

N组A+B

#include<stdio.h>int main(){    int a,b,N;    scanf("%d",&N);    for(;N>0;N--)    {        scanf("%d%d",&a,&b);        printf("%d\n",a+b);    }}

三数求平均值

#include<stdio.h>void main(){    double a,b,c,d;    scanf("%lf%lf%lf",&a,&b,&c);    printf("%.1lf\n",(a+b+c)/3);}

计算月收入

#include "stdio.h"void main(){    double a,b;    scanf("%lf%lf",&a,&b);    printf("%.2lf\n",a+b);}

温度转换

#include<stdio.h>void main(){    double f;    scanf("%lf",&f);    printf("%.2lf\n",5*(f-32)/9);}

圆周长和圆面积

#include<stdio.h>void main(){   double r;   scanf("%lf",&r);   printf("%.2lf %.2lf\n",2*r*3.14,3.14*r*r);}

圆柱体表面积

#include<stdio.h>int main(){    double r,h;    scanf("%lf%lf",&r,&h);    printf("%.2lf\n",(3.14*2*r*h)+(3.14*r*r*2));}

球体的体积

#include<stdio.h>void main(){    double r;    scanf("%lf",&r);    printf("%.2lf\n",4.0/3*3.14*r*r*r);}

卫生包干区的面积

#include<stdio.h>#include<math.h>void main(){    double a,b,c,p;    scanf("%lf%lf%lf",&a,&b,&c);    p=(a+b+c)/2;    printf("%.2lf\n",sqrt(p*(p-a)*(p-b)*(p-c)));}

平面上的三角形判断(1)

#include<stdio.h>#include<math.h>void main(){    double a,b,c,p;    scanf("%lf%lf%lf",&a,&b,&c);    p=(a+b+c)/2;    if(a+b>c&&a+c>b&&b+c>a)        printf("%.2lf\n",sqrt(p*(p-a)*(p-b)*(p-c)));    else        printf("Error\n");}

平面上两点的距离

#include<stdio.h>#include<math.h>void main(){    double x1,y1,x2,y2;    scanf("%lf%lf%lf%lf",&x1,&y1,&x2,&y2);    printf("%.2lf\n",sqrt((x1-x2)*(x1-x2)+(y1-y2)*(y1-y2)));}

鸡兔同笼(1)

#include<stdio.h>void main(){    int m,n;    scanf("%d%d",&m,&n);    printf("%d %d\n",(4*m-n)/2,m-(4*m-n)/2);}

两数交换输出顺序

#include<stdio.h>void main(){    int x,y;    scanf("%d%d",&x,&y);    printf("%d %d\n",x,y);    printf("%d %d\n",y,x);}

两浮点数相除

#include<stdio.h>void main(){    float x,y;    scanf("%f%f",&x,&y);    printf("%.2f\n",x/y);}

商和余数

#include<stdio.h>void main(){    int x,y;    scanf("%d%d",&x,&y);    printf("%d %d\n",x/y,x%y);}

植树问题

#include<stdio.h>void main(){    int m,n;    scanf("%d%d",&m,&n);    printf("%d %d\n",m/n,m%n);}

美元和人民币

#include<stdio.h>void main(){    double a;    scanf("%lf",&a);    printf("%.2lf\n",a*6.5573);}

字符的ASCII码值

#include<stdio.h>void main(){    char ch;    scanf("%c",&ch);    printf("%d\n",ch);}

成绩预算

#include <stdio.h>void main(){    char ch;    scanf("%c",&ch);    printf("%c\n",ch-32);}

简单加密

#include<stdio.h>void main(){    char ch1,ch2;    scanf("%c%c",&ch1,&ch2);    printf("%c%c\n",ch1+3,ch2+3);}

字符加减运算

#include <stdio.h>void main(){    char aa,bb,cc;    scanf("%c%c%c",&aa,&bb,&cc);    if(aa=='+')        printf("%d\n",bb+cc);    else        printf("%d\n",bb-cc);}

多项式求值

#include<stdio.h>void main(){    double x,y;    scanf("%lf",&x);    y=2*x*x+x+8;    printf("%.1lf\n",y);}

多项式求值2

#include<stdio.h>void main(){    double x,y;    scanf("%lf",&x);    y=3*x*x*x*x-2*x*x*x-x*x+10;    printf("%.1lf\n",y);}

居民电费

#include<stdio.h>void main(){    double x,y;    scanf("%lf%lf",&x,&y);    printf("%.2lf\n",0.538*x+0.03*y);}

存款利息

#include <stdio.h>#include<math.h>void main(){    double money,year,rate;    scanf("%lf%lf%lf",&money,&year,&rate);    printf("%.2lf\n",money*pow(1+rate,year)-money);}

存款本息

#include<stdio.h>void main(){    double i,s;    scanf("%lf%lf",&i,&s);    printf("%.2lf\n",s*(1+i));}

三位数的数位分离

#include <stdio.h>void main(){    int x;    scanf("%d",&x);    printf("%d %d %d\n",x%10,x%100/10,x/100);}

棋盘上的麦粒

#include<stdio.h>void main(){    int n,m,i;    unsigned __int64 sum;    scanf("%d",&n);    i=1;    sum=0;    for(m=1;m<=n;m=m+1)    {        sum=sum+i;        i=2*i;    }    printf("%I64u\n", sum);}

数据逆序显示

#include<stdio.h>void main(){    int x;    scanf("%d",&x);    while(x%10==0)    {        x=x/10;    }    while(x!=0)    {        printf("%d",x%10);        x=x/10;    }    printf("\n");}

各位数字求和

#include<stdio.h>void main(){    int x,i,z=0;    scanf("%d",&x);    while(x!=0)    {        i=x%10;        z=z+i;        x=x/10;    }    printf("%d\n",z);}

计算最高位数字

#include <stdio.h>void main(){    int x;    scanf("%d",&x);    while(x/10)        x/=10;    printf("%d\n",x);}

求整数位数

#include<stdio.h>#include <string.h>void main(){    char x[1000];    int y,i,sum=0;    gets(x);    y=strlen(x);    for(i=0;i<=y;i++)    {        if(x[i]>='0'&&x[i]<='9')            sum++;    }        printf("%d\n",sum);}

求整数的绝对值

#include<stdio.h>void main(){    int x;    scanf("%d",&x);    if(x>=0)        printf("%d\n",x);    else        printf("%d\n",-x);}

符号属性判断

#include<stdio.h>void main(){    float x;    scanf("%f",&x);    if(x>0)        printf("1\n");        else    {if(x<0)        printf("-1\n");    else        printf("0\n");}}

求斜边长

#include <stdio.h>void main(){    int x;    scanf("%d",&x);    if(x>0)        printf("positive\n");    else        printf("negative\n");}

判断奇数偶数

#include<stdio.h>void main(){    int x;    scanf("%d",&x);    if(x%2==0)        printf("even\n");    else        printf("odd\n");}

区域内的奇数和/偶数和

#include <stdio.h>void main(){    int x,i=1,sum1=0,sum2=0;    scanf("%d",&x);    if(x%2==0)        {printf("%d\n",(x/2)*(1+x-1)/2);        printf("%d\n",(x/2)*(2+x)/2);}    else        {printf("%d\n",(((x+1)/2)*(1+x))/2);        printf("%d\n",(((x-1)/2)*(2+x-1))/2);}}

奇数和/偶数和

#include<stdio.h>void main(){    int x,i,y,sum1=0,sum2=0;    scanf("%d",&x);    for(i=0;i<x;i++)    {        scanf("%d",&y);        if(y%2==0)            sum1=sum1+y;        else            sum2=sum2+y;    }    printf("%d\n%d\n",sum2,sum1);}

分段函数1

#include<stdio.h>void main(){    int x;    scanf("%d",&x);    if(1<=x&&x<10)        printf("%d\n",3*x-1);    else    {        if(x<1)            printf("%d\n",x);        else            printf("%d\n",4*x-2);    }}

分段函数2

#include<stdio.h>#include<math.h>void main(){    int x;    scanf("%d",&x);    if(x>=0)        printf("%.2lf\n",x*x-2.0);    else        printf("%.2lf\n",sqrt(5-x));}

分段函数3

#include<stdio.h>#include<math.h>void main(){    double x;    scanf("%lf",&x);    if(x<0)        printf("%.2lf\n",(pow(x+1,2)+2*x+1/x));    else        printf("%.2lf\n",sqrt(x));}

第几象限

#include<stdio.h>void main(){    int x,y;    scanf("%d%d",&x,&y);    if(x>0)    {        if(y>0)            printf("1\n");        else            printf("4\n");    }    else    {        if(y>0)            printf("2\n");        else            printf("3\n");    }}

圆内圆外

#include <stdio.h>#include <math.h>void main(){    int x,y;    double a;    scanf("%d%d",&x,&y);    a=sqrt(x*x+y*y);    if(a<10)        printf("in\n");    else if(a==10)        printf("on\n");    else        printf("out\n");}

判断是否英文字母

#include<stdio.h>void main(){    char x;    scanf("%c",&x);    if(x>='A'&&x<='Z'||x>='a'&&x<='z')    printf("YES\n");    else    printf("NO\n");}

单个字母大小写互换

#include <stdio.h>void main(){    char x;    scanf("%c",&x);    if(x>='A'&&x<='Z')    {        x=x+32;    }    else if(x>='a'&&x<='z')    {        x=x-32;    }    printf("%c\n",x);}

计算个人所得税

#include <stdio.h>void main(){    int x;    scanf("%d",&x);    if(x>='a'&&x<='z'||x>='A'&&x<='Z')        printf("%c\n",x);    else        printf("%d\n",x);}

单个字符类型判断

#include<stdio.h>void main(){    char x;    scanf("%c",&x);     if(x>'A'&&x<'Z')        printf("upper\n");     else     {         if(x>'a'&&x<'z')            printf("lower\n");         else         {             if(x>'0'&&x<'9')                printf("digit\n");             else                printf("other\n");         }     }}

字符个数统计

#include <stdio.h>#include<string.h>void main(){    char x[123123];    int y;    gets(x);    y=strlen(x);    printf("%d\n",y);}

就以五十个为一组吧